Siemens GM-SG - Lifting and Moving Equipment; General Lifting and Moving Techniques; Moving Switchgear in Obstructed Areas

Receiving
,
Handling
&
Storage
Lifting
and
Moving
There
are a
number
of
methods that
can
be used
in
handling
the
switchgear
which
,
when
properly
employed
,
will
not
damage
the
switchgear
sections
.
The
handling
method used
will
be determined
by
conditions and available
equipment
at
the installation
site
.
Lifting
with
a crane
is the
preferred
method
of
handling
;
however
,
overhead
obstructions
or
low
ceilings
often
dictate
the method
to
be
used
.
Rollers
,
jacks
or
fork
lift
trucks
may
be used
prior
to
removal
of
wooden skids
.
A
WARNING
Heavy
weight
.
Can
result
in
death
,
serious
personal
injury
or
property
damage
.
Observe
all
handling
instructions
in
this
instruction manual
to
prevent
tipping
or
dropping
of
equipment
.
T
Figure
2
.
Lifting
Indoor
Switchgear
with
Crane
Moving
Switchgear
in
Obstructed
Areas
without
a
Crane
Within
buildings
and obstructed
areas
,
where
a crane
cannot
be
used
,
move
switchgear
with
rollers
,
cribbing
,
jacks
and other such
equipment
as
may
be
required
to meet
the situation
.
Forklift
trucks
should
be used
with
discretion
as
improper
lift
points
could
cause
extreme
damage
to
equipment
.
For
this
reason
,
use
of
a
forklift
truck
to
handle
or move
switchgear
is
not
recommended
.
Jacks
may
be used
to
lift
switchgear
which is
properly
supported
by sturdy
timbers
.
To
prevent
distortion
of
the
cubicles
,
rollers
and
cribbing
of
equal
height
must
be
used
in
sufficient
number
to
evenly
distribute
the load
.
Figure
3
shows
a
method
of
using jacks
on
indoor
switchgear
to
facilitate
the
use
of
rollers under
the
shipping
skid
.
Care
must
be
used
to
prevent
damage
to
instruments
,
relays
,
and devices
,
and
to
maintain the
stability
of
the timbers
.
Remove
rollers and lower
the
switchgear
carefully
.
Leave
wooden
skids
(
when
provided
)
in
place
during moving
operation
until
final
location is reached
.
Each
group
of
switchgear
has
provisions
for
attaching
lifting
equipment
.
Though
the
lift
points
vary
in
location
on
indoor
,
Shelter
-
Clad
outdoor
,
and
non
-
walk
-
in
outdoor
designs
,
all
are
designed
for
use
with
a
crane
of
adequate
height
and
capacity
.
To
estimate the
maximum
required
crane
capacity
,
multiply
the number
of
sections
to
be
lifted
by
5300
pounds
(
2400
kg
)
.
A
drawing
pocket
(
or
holder
)
is
provided
on
each
lineup
of
switchgear
.
This
drawing
pocket
includes
a
general
arrangement
drawing
of
the
switchgear
lineup
,
plus
a
drawing
with
installation and
handling
instructions
for
the
equipment
.
The
drawing
pocket
is
normally
located
at
the
left
end
of
the
lineup
.
Review this
information
carefully
before
moving
the
equipment
.
Indoor
Switchgear
Before
removing
the
protective
packing
materials
,
indoor
equipment
may
be moved
by
crane
with
lift
cables attached
through
the
packaging
to
the
lifting
bars
on
the
top
of
the
switchgear
.
If
crane
facilities
are
unavailable
,
or
if
tight
spaces
prevent
use
of
a crane
,
rollers under the skids
may
be used
.
Lifting
Indoor
Switchgear
with
Crane
Recommended
lifting
of
indoor
switchgear
is
by
means
of
lifting
cables connected
to
an
overhead
crane
.
The
lifting
cables
are
connected
to
the
eyes
in
the
top
lifting
bars
.
One
set
of
lifting
bars is located
near
the
front of
the
switchgear
,
while another
set
of
lift
bars is
located closer
to
the middle
of
the
switchgear
,
as
illustrated
in
Figure
2
.
A
crane
with
sufficient
height
should be used
so
the load
angle
(
from
horizontal
)
on
the
lifting
cables
will
be
at
least
45
degrees
,
when
viewed
from
the
front
or
the
rear
.
A
lesser
angle
could
cause
the
equipment
to
be
damaged
.
The
lifting
cables
must
have
spreaders
from front
to
rear
to
prevent
twisting
the
lift
bars
.
Figure
3
.
Moving
Switchgear
with
Jacks
and
Rollers
5
Courtesy of NationalSwitchgear.com